<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>css布局</title>
		<style type="text/css">
			body{
				width: 600px;
				background-color: red;
				margin-left: 10px;
			}
		</style>
	</head>
	<body>
	</body>
</html>
